GFS - SAN issue
gcasanova at perenety.com
gcasanova at perenety.com
Fri May 19 17:47:38 UTC 2006
Hi,
I am using Red HAT ES 4.0, with Cluster Suite Package Enterprise and the
GFS. It appears that I am constantly connecting and disconnecting to the
SAN Storage. I am using SFNet driver Version 4:0.1.11-3 (02-May-2006).
To make myself clearer each time I launch the driver service (SFNET) I
am constantly connecting and disconnecting to the SAN.
here is my /var/log/messages:
May 19 10:29:09 database-cluster-node1 iscsid[2515]: Connection to
Discovery Address 205.219.64.1 closed
May 19 10:29:09 database-cluster-node1 iscsid[2515]: Connected to
Discovery Address 205.219.64.1
May 19 10:29:39 database-cluster-node1 iscsid[2515]: Connection to
Discovery Address 205.219.64.1 closed
May 19 10:29:39 database-cluster-node1 iscsid[2515]: Connected to
Discovery Address 205.219.64.1
May 19 10:30:09 database-cluster-node1 iscsid[2515]: Connection to
Discovery Address 205.219.64.1 closed
May 19 10:30:09 database-cluster-node1 iscsid[2515]: Connected to
Discovery Address 205.219.64.1
May 19 10:30:39 database-cluster-node1 iscsid[2515]: Connection to
Discovery Address 205.219.64.1 closed
May 19 10:30:39 database-cluster-node1 iscsid[2515]: Connected to
Discovery Address 205.219.64.1
So every 30 seconds I am trying to connect and my connection is closed
then I am reconnected.
I set the connection to the SAN to be constant or continuous because If
I am disconnected from the SAN, I will like to be connected
automatically as well.
I thought it was coming from some configuration file and basically this
one :
/etc/iscsi.conf:
# Timeout options
# Configuration Options
LoginTimeout=25
ActiveTimeout=25
IdleTimeout=180
PingTimeout=15
HeaderDigest=prefer-off
DataDigest=prefer-off
# We want to automate the connection
# If a Connection to the SAN is broken we want to reestablish
# automatically a new connection
Continuous=yes
DiscoveryAddress=205.219.64.1
OutgoingUsername=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
perenety.com
OutgoingPassword=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I do not thing the problem is coming from the cluster set-up. But let me
describe how it is, I have two servers running the cluster server on
both machines. One of them is owning the Service (Server A), and the
other one is a cluster member. When Server B is dead, Server A is
acknowledging from its dead status. The problem is Server B is not
taking the relay on the Service that is supposed to be shared (GFS).
Only one of Server A and B is able to see the Service running on the
cluster configuration.
Thanks.
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